Temperature Converter

Convert thermal scales between Celsius, Fahrenheit, Kelvin, and Rankine.

Converter Controls
Converted Temperature
0 °F
Formula: (°C × 9/5) + 32

All Temperature Scales

Thermodynamics

Thermal Scale Formulas

Unlike distance or mass, thermal scale conversions require shifting zero-points (offsets) alongside ratio multipliers:

Celsius to Fahrenheit

°F = (°C × 9/5) + 32

Water freezes at $0^\circ\text{C}$ ($32^\circ\text{F}$) and boils at $100^\circ\text{C}$ ($212^\circ\text{F}$).

Absolute Zero (Kelvin)

K = °C + 273.15

Kelvin starts at absolute zero ($0\text{ K} = -273.15^\circ\text{C}$), the state where particle thermal motion ceases.